Three Kingdoms of Korea
Three rival kingdoms that shaped ancient Korea.
The Three Kingdoms of Korea, or Samhan, emerged after the Proto–Three Kingdoms period, when many smaller states and confederacies consolidated. By the time Buyeo was annexed in 494 and Kaya in 562, only three major polities remained on the Korean Peninsula: Goguryeo, Paekche, and Silla. Goguryeo controlled the northern half of the peninsula, along with the Liaodong Peninsula and parts of Manchuria, while Paekche and Silla occupied the southern half. The island domains of Tamna and Usan were subordinate to Paekche and Silla, respectively. All three kingdoms shared a similar culture and language; the Book of Sui noted that their customs, laws, and clothing were generally identical. Paekche and Goguryeo also shared founding myths likely originating from Buyeo. Their original religions were shamanistic, but Chinese cultural influences, including Confucianism and Taoism, grew over time. Buddhism arrived in Korea from India via Tibet and China during the 3rd century CE, and by 372 CE it had become the state religion of Goguryeo, eventually spreading to all three kingdoms. Unlike China’s literary elite, these kingdoms maintained a warrior aristocracy. The period ended in the 7th century when Silla allied with Tang China to unify the peninsula for the first time, defeating Paekche and Goguryeo. Afterward, Silla fought Tang for control, and the region was later divided into the Later Three Kingdoms before being annexed by the Goguryeo revivalist state of Goryeo. The name “Samhan” became synonymous with the Three Kingdoms from the 7th century onward, and the term “Han” in the names of the Korean Empire and the Republic of Korea derives from this period, not from earlier southern confederacies.
- Period
- Proto–Three Kingdoms period to 7th century
- Kingdoms
- Goguryeo, Paekche, Silla
- Region
- Korean Peninsula and roughly half of Manchuria
- End
- 7th century, after Silla allied with Tang China and unified the peninsula
Lore & Background
The Three Kingdoms of Korea—Goguryeo, Paekche, and Silla—occupied the entire Korean Peninsula and roughly half of Manchuria, including modern-day Northeast China and small parts of the Russian Far East. Goguryeo controlled the northern half of the peninsula, the Liaodong Peninsula, and Manchuria, while Paekche and Silla held the southern half. The island kingdoms of Tamna and Usan were subordinate to Paekche and Silla, respectively. All three kingdoms shared a similar culture and language, with Paekche and Goguryeo tracing their founding myths to Buyeo. Their societies were dominated by a warrior aristocracy, in contrast to the literary elite of China. Buddhism arrived in Korea from India via Tibet and China in the 3rd century CE and became the state religion of all three kingdoms, beginning with Goguryeo in 372 CE. Their original religions were shamanistic, but Chinese influences such as Confucianism and Taoism grew over time. The Book of Sui recorded that their customs, laws, and clothes were generally identical. The three kingdoms competed for hegemony over the peninsula, consolidating after Buyeo was annexed in 494 and Kaya in 562. The period ended in the 7th century when Silla allied with Tang China and unified the peninsula for the first time, though Silla later divided into the Later Three Kingdoms and was ultimately annexed by Goryeo.
Reader's Guide
The Three Kingdoms of Korea are significant as the foundation of the Korean people and state. Their competition for hegemony led to cultural and political developments, including the adoption of Buddhism and the establishment of warrior aristocracies. The period ended in the 7th century when Silla, allied with Tang China, unified the peninsula for the first time. The name 'Samhan' later became synonymous with Korea, influencing the names of the Korean Empire and the Republic of Korea. The kingdoms' histories were recorded in the Samguk sagi and Samguk yusa, and their legacy persisted through the Later Three Kingdoms and the Goryeo dynasty.
Did You Know?
- The Three Kingdoms occupied the entire Korean Peninsula and roughly half of Manchuria.
- The name 'Samhan' became synonymous with the Three Kingdoms from the 7th century.
- Silla allied with Tang China to unify the peninsula in the 7th century.
Frequently Asked Questions
What does 'Three Kingdoms of Korea' actually refer to?
It's the name for the long era when the Korean Peninsula was split among three rival states—Goguryeo, Paekche, and Silla—each competing for supremacy over the region. The period runs from the proto-kingdom phase all the way through the seventh century.
Which three kingdoms made up the period and where did each sit?
Goguryeo dominated the north, stretching into roughly half of Manchuria; Paekche held the southwest coast; and Silla occupied the southeast. Their peoples are the direct ancestors of the modern Korean ethnic group.
How does the Three Kingdoms period come to an end?
Silla struck a military alliance with Tang China, and the combined forces toppled both Goguryeo and Paekche in the seventh century. That conquest unified the peninsula under Silla and closed the era.
Why do fans and historians consider this era so important?
It is the crucible in which Korean identity, language, and cultural traditions were forged through centuries of rivalry and eventual unification. Nearly every thread of later Korean civilization—art, governance, religion—can be traced back to these three states.
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